Steam-boiler setting.



M. W. SEWALL.

STEAM BOILER SETTING.

ABPLIGATION .IILED MAY 27, 1912.

wi/tmwoeo z 1 K m L a m M 1 M 7 FM mm m S M m 5 m m 2 m b m 6 M. W.SEWALL. STEAM BOILER SETTING. APPLICATION FILED MAY 27, 1912.

1,Q90,94"7. Patented Mar. 24, 191 1 2 SHEETS-SHBET 2.

: 4 r i /7/ O L0 %L a to-c1421 sections I provide will permit a relativemovement between. these two sections without distortion of the e STATESm1;

mmor'r w. snwann, or nnw comrany, or BAYONNE,

. 1 i YORK, YL, ASSIGNOR TO THE BABCOCK 85 WILCOX NEW JERSEY, ACORPORATION OF NEW- JERSEY,

v szrnan-noxtnnsnrrme.

To all whom it may concern Be it known that I, Mmo'rr W. SEwAu-,' a

citizen of the United, States, residing at New York city, borough ofManhattan, in" the county of New York and State of New York, haveinvented certain new and useful IIIlprovements in Steam-Boiler Settings,of

which the following is a specification.

My invention relates to a steam boiler setting, and more particularly tothe construction of the'lining of the side walls, which is divided intothree sections. The lowermost section comprises a series of water tubesand. intermediate upon said tubes, the tubes being expanded into frontand rear manifolds supported at the bottom so their expansion is in anupward direction. The intermediate section comprises a lining of firebricks supported upon the outside vertical rows of tubes concl-v prisedin an inclined bank of tubes; and the uppermost section comprises alining of fire brick bolted to the outer steel casing. The steam andwater drums aresupported from overhead beams in an open chamber, thegenerating tubes are connected directly to the drums and the expansionof the vertical headers and their connections is downward. Between thelowermost and the intermediate an expansion joint which walls;

accompanying drawings in wh1ch- Figure 1 1s a vertical longitudinalsecand part section, the right-hand portion be ing a vertical section onthe plane of the line 2-2 of Fig. 1', and the left-hand por' tion anelevation of the one header with its-tubes, however, being shown. X

Similar reference numerals indicate similar parts in the several views.

For the purpose of illustrating one application of my invention, I haveshown a standard form of boiler construction comrising a bank ofinclinedgenerating tubes 1, the tubes being expanded into uptake and downtakeheaders 2 and 3. Transverse baffies 4 and 5 divide the bank of tubesinto a plurality of passes beginning at the steam uptake end. Supportedrow of tubes is a baflie 6 extending from the Specification of Lettersl'atent.

bricks supported The invention will be understood from the pressureparts, only head beams 14' by means vStraps 14 on the lowermost rearheaderto the transverse baflie' i. The

furnace is supplied with fuel by a traveling grate of any approved Iconstruction and prefenably lnclined. Above the furnace is a series ofroof tubes 7, the ends of said tubes being expanded into front and rearboxes 9 and 10, respectively. A baflie 8 is supported upon tubes 7 andextends from the. front box 9 rearwardly. The'uptake headers 2, areconnected to ox 9 by tubes 11, and the downtake headers 3 are connectedto box 10 by tubes 12. The uptake headers are connected to the steam andwater drums 14 by tubes 13, and the downta'ke headers are connected tosaid drums by tubes 13'. In

this standard form of boiler construction the gases, before coming intocontact to a sub-' stantial extent with the water tubes, are

carried below the first and-second passes toward the rear of the boilerand thence H Patented Maneaioii. f Application filed May2'7, 1912.Serial No. 699,861.

back to the firstpass between the roof .8 and. a

the baffle 6 before entering upon the cours that they take across theuptake end of th bank of tubes.

As above stated, the side walls of the set tmg are divided into threesections, the low.- ermost extending from the floor level and comprisingwater tubes 15 extending fromlevel to the roof substantially the gratetubes to the bank tubes 7 and above he roof of tubes 1, and from thefront to the rear wall, nd are inclined substantially parallel with t etubes of the bank 1. The tubes 15 support recessed bricks. 15" so as toexpose" one side of the tubes as shown in Fig. 2-, and

said tubes are expanded into front and rear manifolds 16 and 17,respectively, said manlfolds being supported on suitable structuralwork resting upon the floor; The front manifolds 16 are connected todrums 14; by tubes 18. -The rear manifolds 17 are connected by tubes 19to across box 20 nippled to the undersides of the drums 14. The steamand water drums are supported in an open chamber 21, free and clearwithout the usual brick covering,from overof suspension Theexpansion ofthe headers 2 and 3, and their connections, is downward, and, to permitof'the downward expansion of the headers 2 and 3 and of the upwardexpansion of the manifolds 1'6 and 17 without distortion of the'sidewalls, I make the outside front and rear headers 22 of greater lengththan the headers into which the other v tubes of the bank are expanded,and

Y much as half 40 tubes 23 and th a setting with the into the lower endsof these headers two tubes 23, as shown in Fig. The tubes of the sidevertical rows above tub-es 23 support the fire bricks or tiles 24.Resting upon the topmost tubes and upon the tubes 23 arefire bricks 25,the latter being recessed to conform to the tubes. The lowermost row ofbricks% is supported on the bricks 25.

The uppermost section of the lining is composed of fire bricksor tiles26 held in place by bolts 27 passing through straps 26 and outer steelcasing 28. The latter carries the weight of the bricks 26, thus reliev-15 ing the upper side tubes of the boiler of the weight which wouldotherwise come upon them. Between the steel caslng and the 11ning oftubes and fire bricks above described e is a layer of non-conductingmaterial 29.

As shown in Fig. 2, the lowermost section of the setting is ofiset fromthe sections above it.- The verticals extending upwardlv from thechannel iron 30 are bolted through the inner vertical flange of saidiron, and the verticals extending downwardly are attached to the web ofthe channel at .its underside by angle iron clips. I

From the foregoing description it will be understood that as the headers2 and 3 have direct connection with the drums, which latterare'supported from overhead beams, the

expansion of the headers will be downward and the lower tubes 23 of theboiler will '1; have a downward movement. 36 folds 16 and 17 and thetubes 15 of the side The maniwalls, being supported at the bottom, havea movement upward, resulting in a considerable relative movement, whichmay be as an ,\inch,between the lower e uppermost tubes 15. These tworows of tubes being in the same inclined plane and bridged by thebricks25, the

downward movement of the tubes 23 and the upward movement of the top rowof tubes 15 will tilt the brick 25 without disturbance of the outernon-conducting covering except a slight compression between the brick 25and the channel 30,'and without any distortion of the outer steelcasing, or distress to the fire brick lining. It is also to be notedthat the upper surface of the bridge brick 25 is formed so that a in thesame manner as if theshoulder on the I bridging were a boiler tube.-

In my Patent No. 1,064,175, dated June 10, 1913, the application forwhich was filed got even date herewith, I have shown a boiler wallsconstructed as side herein described and claimed.

at I claim and desire to 'sec'ureby Letters-Patent of the UnitedStates'is 1. A boiler setting comprisin side walls having a lming ofwater tubes divided into sections ofi'set from each other, and meanshaving one section front and rear manifolds intowhich saidv standardside boiler lb wall brick can be used-in connection with it -hav1ng one'section lined with expand I to permit the movement of said sectionsrelative to each other vertically in opposite directions withoutdistortion of the walls.

2. A boiler settin comprising side walls having one section ined withwater tubes, front and rear manifolds into which said tubes areexpanded, and another section lined with water tubes, front andrearheaders into which said latter tubes are expanded, and means topermit the movement of said manifolds and headers with their connectingtubes in opposite 'directionswithout distortion of the walls.

3. A boiler setting comprising side walls lined with water tubes,

tubes are expanded, another section lined with water tubes and front andrear headers into which said latter tubes are expanded, said manifoldsbeing supported at their bases permitting their expansion upward, andsaid headers supported from overhead permitting their expansiondownward, and

means to permit such relative vertical movement Without dis ortion ofthe walls.

4;. A steam boiler setting comprising side walls having a lining ofwater tubes divided into sections oflset from each other so as to becapable of movement in opposite directions, and a movable bridgebetweenv the said sections to permit vertical movement of the sectionswithout distortion of the walls.

5. A boiler setting comprising side walls having one section lined withwater tubessuspended from overhead and a lower sec tion supported fromthe cor, line, said sections being ofi'set, and means, to permit themovement of said sections in opposite-directions without distortion ofthe walls;

7. A (boiler setting having the furnaceside walls composed of watertubes and fire rick's supported thereon, and the upper or boiler wallscomposed of water vtubes and bricks supportedthereon, ofnon-conductingmaterial and steel plates,

an outer lining and means to permit ofa relative movement vertically inopposite directions of the tubes of said sections without distortion ofthe walls.

8. A boiler-setting comprising side walls fire b ricks supportedthereon, front and rear manifolds into, which said tubes are expended,another section having water tubes and fire bricks supported thereon,the tubes water tubes,

ma am of said latter section being included in a bank of generatingtubes, front and rear headers into which said generating tubes areexpanded, and means to permit a relative movement vertically of thetubes of said secv tions without distortion of the walls.

9. A steam boiler comprising a bank of inclined tubes, front and .rearheaders into which said tubes are expanded, steam and water drums fromwhich said headers are suspended, fire bricks supported on the out siderows of tubes of said bank, a row of water tubes below and independentof said bank of tubes, fire brick supported upon said lower row oftubes, front and rear manifolds into which the tubes of said lower roware expanded, and means to permit the movement of said headers andmanifolds with their connected tubes vertically in opposite directionswithout distortion of the walls.

10. A boiler setting comprising side walls having one section lined withwater tubes front and rear manifolds into which said tubes are expanded,and another section lined with water tubes, and front andmear headersinto which said latter tubes are expanded, said front and rear headersbeing independently connected by pipes to the steam drum.

. In. testimony whereof I have hereunto signed my name in the presenceof two sub-' scribing witnesses.

MINOTT W. SEWALL.

Witnesses:

J OHN A.,W. DIXON, E. P. TERRY.

